Oil rectifier



1,628,085 W. G. WALL.

OIL RECTIFIER May 10. 1927.

Filed Sepr/ 26, 1925 William @Wall Patented May 10, 1927.

UNITED STATES PATENT OFFICE.

WILLIAM G. WALL, OF'INDIANAPOLIS, INDIANA, ASSIGN'OB TO RECTIFIER MANU-FACTURING COMPANY, 0F INDIANAPOLIS, INDIANA, A CORPORATION 0F IN- DIANA.

OIL BECTIFIER.

Application tiled September 26, 1925. Seriallo. 58,950.

My said invention relates to oil rectitiers and it is anobject thereofto provide in conjunction 'with the rectifier an improved. constructionof this character with a strainer for strainin' particles of foreignmatter out of the oil w ich strainer shall be highly effective andcapable of use over an extended period of time without becoming clogged.

Referring to the accompanying drawings which are made a. part hereof andon which similar reference characters indicate similar parts,

The single figure is a side elevation of my device in position on anautomobile.

.In the drawings reference character 10 indicates the carbureter 'of aninternal combustion engine which may be a part of'an automobile, mydevice b'eing intended primarily for use in automobiles though it is notnecessarily limited to such use. A lpipe 11 is .connected to thecarbureter at the air intake side of the throttle valve 12 said pipebeing centrally connected at its other end to the top of a casing 13having a distillation chamber surrounded b a 'acket 14 to which exhaustgases are admitte from the exhaust side of the engine by way of passagesindicated at 15. The upper part of the chamber constitutes adistillation chamber in which diluted oil is heated so as to vaporizevolatile constituents as 0rasoline and water which are then drawn othrough the pipe 11 by means of suction from the carbureter. ln previousconstructions it has been custoinary to attach the outlet pipe from therectifier to the intake manifold but this is objectionable for thereason that the suction through said pipe decreases in accordance withincreasing speeds of the engine and vice versa. This is exactly theopposite of the result desired since the greater the speed of the enginethe more rapidly the oil circulates and a greater suction 1s required toeliminate the impurities. 'ljhe heat in the exhaust of course increaseswith increasing speed of the engine at theA same time that the flow ot'oil decreases in such earlier constructions and thus there is danger oftoo much distillation at high speeds and too little distillation at lowspeeds. The greater the sieed of the engine therefore the more rapidshould be the passage of the oil through the rectifier.

Another objection to former practice is that I when idling suchconnections as above referred to break the vacuum in the intake manifoldand cause sensitive engines to miss which is objectionable.

'A pipe 16 is located centrally of the casing 13 said pipe being open atits upper end which is normally closed by a valve 17 seating in theuppervend of the pipe 16. This valve is .opened and closed by means of aoat 19 and when opened admits air to the upper end of the chamber, theair, in this instance being taken from the crank case though the pipemay open directly to the outer air if desired. A Siphon 20 providesmeans for drawing off the purified oil from the distillation chamberwhen a suiicient amount has accumulated therein, this siphon leadingback to the crankcase or to a suitable reservoir for pure oil. It willbe seen that opening of: the valve 17 relieves the partial vacuum in theupper part of the distillation chamber and thus enables the oil toescape with greater rapidity. If desired the parts may be soproportioned that the upper end of valve 17 closes the adjacent end ofpipe 11 so as to breakthe suction more effectively by interrupting thecommunication to the carbureter.

Diluted oil is supplied to a chamber at 21, which chamber in thisinstance is below the distillation chamber, by means of a high pressureline 22 to which oil is supplied by a pump or other suitable means.'From the high pressure line the oil passes through a pipe 23 to thechamber 21, and if desired a. by-pass 24 may be provided at anintermediate point to reduce the pressure by carrying oil an excess ofoil and prevent too great a supply to the distillation chamber.

The chamber 21 is located below the distillation chamber' partly for thereason that the sediment in the oil is thusgiven a chance to sink to thelower part of the chamber where it can be drawn off through a portnormally closed by a screw-plug 25. In the present construction the partof the casing which includes the chamber 21 is se arable from the maincasing being connecte thereto by screws 26. A port at the upper end ofthe chamber 21 is surrounded by an annular lange 27. having an outwardlyprojecting Between the sediment chamber and the distillation chamberthere is an intermediate chamber 28 in which a fabric strainer 29 isarranged for separating the solid 'impurities from the oil. At its lowerend the strainer is held in place about the lip on the flange 27 bymeans of a spring ring or Wire 29. A removable partition 30 is placed atthe upper end of the intermediate chamber adjacent the bottom of thedistillation chamber and is so held by a spring 33 or in any otherconvenient way, and this artition is provided with one ormore openingsor ports 31 therethrough.

I make the strainer 29 from a substantially cylindrical fabric bagpreferably of non-inflammable fabric, as for example asbestos, in orderto provide a large area through which the lubricant may pass. Rings 34and 35 are alternately placed inside and outside of the bagto cause thesame to foldyover in Japanesev lantern fashion and when collapsed occupya relatively small space within the'l chamber.

It will ,be obvious to those skilled in the art that various changes maybe made in my device Without departing from the spirit of the inventionand therefore I do not limit myself to what is shown in the drawings anddescribed in the specification but only as indicated in the appendedclaims.

Having thus fully described my said invention, what I claim as new anddesire to secure by Letters Patent, is:

1. An oil rectifier comprising a casing, a sediment chamber at thebottom of the casing, a partition between the sediment chamber and theupper part of the casing,

an oil inlet into said casing, an oil. outlet` from said casing, and astrainer between said inlet and outlet comprising a bag and havin meansfor holding the same collapse substantially as set forth.

2. An oil rectifier comprising a casing, a sediment chamber at thebottom of the casing, a removable partition between the sediment chamberand the upper part-'of the casing, an oil inlet into said casing, an oiloutlet from said casing, a strainer between said inlet and outletcomprising a bag and having means for holding the same collapsed, and aspring for maintaining said bag and partition in position, substantiallyas set forth.

3. An oil rectifier comprising a fluid chamber, a sediment chamber belowsaid fluid chamber, a strainer between said sediment and fluid chamberscomprising a bag, and rings placed alternatelv inside and outside ofsaid bag to hold the same axially collapsed, substantially as set forth.

4. An oil rectifier comprising a fluid chamber, a sediment chamber belowsaid fluid chamber, a removable partition between said fluid andsediment chambers, a

strainer below said partition comprising a bag the end of said bag beingdisposed against the partition, and spring means holding said bag andpartition in position, substantially as set forth.

5. An oil rectifier comprising a casing having upper and lower chambers,a removable partition between said chambers, openings through saidpartition, an inlet for oil into the lower chamber, an outlet for oilfrom the upper chamber, a strainer located below said partition having aplurality of folds extending transversely of the chambers through whichthe lubricant flows from the lower to the upper chamber for separatingsolid particles therefrom, substantially as set forth.

(i. An oil rectifier comprising a fluid chamber, a sediment chamberbelow the fluid chamber, an air pipe extending through said sedimentchamber and terminating in the fluid chamber for admitting airthereinto, an inlet for oil into the sediment chamber, an outlet for oilfrom the fluid chamber, a strainer disposed between the sediment andfluid chambers said strainer having a plurality of folds extendingtransversely of the chamber, substantially as set forth.

7. An oil rectifier comprising a fluid chamber and a sediment chamber,an inlet for oil into the sediment chamber, a siphon for removing theoil from the fluid chamber, means connected with the carbureter forcreating a suction in the fluid chamber, and a strainer located betweenthe sediment and fluid chambers said strainer having a plurality offolds extending transversely of the chamber, substantially as set forth.

8. An oil rectifier comprising a fluid chamber and a removable sedimentchamber, an inlet for oil into the sediment chamber, a siphon forremoving the oil from the fluid chamber, means connected with thecarbureter for creating a suction in the fluid chamber, and a strainerlocated. between the sediment and fluid chambers said strainercomprising a bag having rings alternately placed inside and outside ofthe same to 1 hold the strainer collapsed, the said strainer beingremovable with the sediment chamber, substantially as set forth.

9. The combination in a rectifier of an elongated casing having itsinterior formed of two diameters with a shoulder between the same, astrainer in said casing, a removable closure for the end of the casingadjacent the larger diameter, a body supported by said removable closureand extending longitudinally of said casing, a partition slidablymounted upon said body and adapted to seat against said shoulder, meansbetween the partition and the removable closure for normally yieldablyforcing said perforated partition against the `shoulder when the partsare assembled, substantially as set fort 10. The combination inarectifier of' an elongated casing having its interior formed of twodiameters with a shoulder `between the same, a removable closure for theend of the" casing ad'acent the larger diameter, a body supporte insaid' removable closure and extending longitudinally of said casing, aperforated partition slidably mounted upon said body and adapted to seatagainst said shoulder when the parts are assembled, a spring about` saidbody between the partition and 'the're'x'vable closure for normallyforcing said partition against the shoulder, said closureA having anupstanding rim and a strainer fastened about said rim `'and closelyengaging said body beneath said partition, substantially as set forth.y

11. The combination in an o1l rectifier of an elongated casing havingspacedinlet and discharge openings therein, a strainerin said casing, aremovable closure for one end of the casing, a shoulder formed in saidcasing between said spaced openings, body mounted in said removableclosure and extending into the casin beyond .said shoulder, a partitionsupporte on said body and adapted to bear against said shoulder, springmeans associated with said body carried by' the closure between-saidpartitieny and said closure for Anormally forcing said partition againstsaid shoulder, substantially as set forth.

L2.y The combination in an oil rectifier ada ted'to be inserted in thepressure line of tlie lubricating system of an engine, of a `fiuidchamber having an oil discharge pasla iioat supported in said-fluidchamber on said air pipe and havin means for' closing for oil into thesediment cham er, and a strainer ,inV said sediment chamber below saidpartition whereby theoil will be caused to Y `the openupper end of t eair pi e, an inlet to pass therethroug'hin its ath throughthe device,substantially as set orth.

1n Witness whereof, I have hereunto set my hand at Vashin ton, Districtof Columbia, this twentyii th day of September, A. D. nineteen hundredand twenty-five.

WILLIAM G.,WALL.

